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7c9c6ed761
Essentially the same as the GEP change in r230786.
A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)
import fileinput
import sys
import re
pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")
for line in sys.stdin:
sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7649
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
28 lines
848 B
LLVM
28 lines
848 B
LLVM
; RUN: opt -basicaa -gvn -S < %s | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-f128:128:128-n8:16:32:64"
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; GVN shouldn't PRE the load around the loop backedge because it's
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; not actually redundant around the loop backedge, despite appearances
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; if phi-translation is ignored.
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; CHECK: define void @test0(i8* %begin)
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; CHECK: loop:
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; CHECK: %l0 = load i8, i8* %phi
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; CHECK: call void @bar(i8 %l0)
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; CHECK: %l1 = load i8, i8* %phi
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define void @test0(i8* %begin) {
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entry:
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br label %loop
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loop:
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%phi = phi i8* [ %begin, %entry ], [ %next, %loop ]
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%l0 = load i8, i8* %phi
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call void @bar(i8 %l0)
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%l1 = load i8, i8* %phi
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%next = getelementptr inbounds i8, i8* %phi, i8 %l1
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br label %loop
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}
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declare void @bar(i8)
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